/*---------------------------------------------------------------------------*/
static int
spirit_radio_init(void)
{
PRINTF("RADIO INIT IN\n");
SpiritSpiInit();
/* Configure radio shut-down (SDN) pin and activate radio */
SdkEvalM2SGpioInit(M2S_GPIO_SDN, M2S_MODE_GPIO_OUT);
/* Configures the SPIRIT1 library */
SpiritRadioSetXtalFrequency(XTAL_FREQUENCY);
SpiritManagementSetVersion(SPIRIT1_VERSION);
SpiritGeneralSetSpiritVersion(SPIRIT1_VERSION);
SpiritManagementSetXtalFrequency(XTAL_FREQUENCY);
/* wake up to READY state */
/* weirdly enough, this *should* actually *set* the pin, not clear it! The pins is declared as GPIO_pin13 == 0x2000 */
M2S_GPIO_SDN_PORT->BSRRL = M2S_GPIO_SDN_PIN;
/* GPIOC->BSRRL = M2S_GPIO_SDN_PIN;*/
GPIO_ResetBits(M2S_GPIO_SDN_PORT, M2S_GPIO_SDN_PIN);
/* wait minimum 1.5 ms to allow SPIRIT1 a proper boot-up sequence */
BUSYWAIT_UNTIL(0, 3 * RTIMER_SECOND/2000);
/* Soft reset of core */
spirit1_strobe(SPIRIT1_STROBE_SRES);
/* SpiritCmdStrobeSres();*/
/* Configures the SPIRIT1 radio part */
SRadioInit xRadioInit = {
XTAL_FREQUENCY,
XTAL_OFFSET_PPM,
BASE_FREQUENCY,
CHANNEL_SPACE,
CHANNEL_NUMBER,
MODULATION_SELECT,
DATARATE,
FREQ_DEVIATION,
BANDWIDTH
};
SpiritRadioInit(&xRadioInit);
SpiritRadioSetPALeveldBm(0,POWER_DBM);
SpiritRadioSetPALevelMaxIndex(0);
/* Configures the SPIRIT1 packet handler part*/
PktBasicInit xBasicInit = {
PREAMBLE_LENGTH,
SYNC_LENGTH,
SYNC_WORD,
LENGTH_TYPE,
LENGTH_WIDTH,
CRC_MODE,
CONTROL_LENGTH,
EN_ADDRESS,
EN_FEC,
EN_WHITENING
};
SpiritPktBasicInit(&xBasicInit);
/* Enable the following interrupt sources, routed to GPIO */
SpiritIrqDeInit(NULL);
SpiritIrqClearStatus();
SpiritIrq(TX_DATA_SENT, S_ENABLE);
SpiritIrq(RX_DATA_READY,S_ENABLE);
SpiritIrq(VALID_SYNC,S_ENABLE);
SpiritIrq(RX_DATA_DISC, S_ENABLE);
SpiritIrq(TX_FIFO_ERROR, S_ENABLE);
SpiritIrq(RX_FIFO_ERROR, S_ENABLE);
/* Configure Spirit1 */
SpiritRadioPersistenRx(S_ENABLE);
SpiritQiSetSqiThreshold(SQI_TH_0);
SpiritQiSqiCheck(S_ENABLE);
SpiritQiSetRssiThresholddBm(CCA_THRESHOLD);
SpiritTimerSetRxTimeoutStopCondition(SQI_ABOVE_THRESHOLD);
SET_INFINITE_RX_TIMEOUT();
SpiritRadioAFCFreezeOnSync(S_ENABLE);
/* Puts the SPIRIT1 in STANDBY mode (125us -> rx/tx) */
spirit1_strobe(SPIRIT1_STROBE_STANDBY);
/* SpiritCmdStrobeCommand(SPIRIT1_STROBE_STANDBY);*/
/* SpiritCmdStrobeStandby();*/
spirit_on = OFF;
CLEAR_RXBUF();
CLEAR_TXBUF();
/* Initializes the mcu pin as input, used for IRQ */
SdkEvalM2SGpioInit(M2S_GPIO_0, M2S_MODE_EXTI_IN);
SdkEvalM2SGpioInit(M2S_GPIO_1, M2S_MODE_EXTI_IN);
SdkEvalM2SGpioInit(M2S_GPIO_2, M2S_MODE_EXTI_IN);
SdkEvalM2SGpioInit(M2S_GPIO_3, M2S_MODE_EXTI_IN);
/* Configure the radio to route the IRQ signal to its GPIO 3 */
SpiritGpioInit(&(SGpioInit){SPIRIT_GPIO_3, SPIRIT_GPIO_MODE_DIGITAL_OUTPUT_LP, SPIRIT_GPIO_DIG_OUT_IRQ});
process_start(&spirit_radio_process, NULL);
PRINTF("Spirit1 init done\n");
return 0;
}
/**
* @brief this function sets the RSSI threshold
* @param int dbmValue
* @retval None
*/
void Spirit1SetRssiTH(int dbmValue)
{
SpiritQiSetRssiThresholddBm(dbmValue);
}